Seiko Cal. 6178 - 856

The Seiko 6178-856 represents an important milestone in Seiko's 1993 lineup. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-3f3399a18ae6]

Also known as: Sumo, Rally

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

26j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1993

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